I'm the same way (except for the hats). I haven't put on make-up since my teen years. I started going grey at 13 and now I'm more than 50% grey and I don't dye my hair. Once in a blue moon one of my kids will comment and I reply "I've earned every single grey hair on my head, and you've given me half so it's staying." I absolutely HATE shopping. When I find a pair of shoes that are comfortable I literally wear them out. But I'm comfortable in my own skin.

You'll never please everyone so why bother? As long as you're comfortable with yourself don't give it another thought.